Orifice flange

orifice flange

A flange that helps to measure the fluid flow conveyed by the pipeline via a flow nozzle which is positioned on the flanges itself, is known as a Orifice Flanges. They are used with orifice meters for measuring the flow rate of oil, gas, and various other liquids. The Orifice Plate Flanges are available in different sizes and material grades. It is basically a disc-shaped flanges, and one would either get a raised face or Ring Type Joint Orifice Flanges. There is also a Asme Orifice Plate flanges which is a device placed between two orifice flanges and are attached to the pipe. The Din 19214 Orifice Flanges is used in a wide range of industries, including chemical, nuclear, petrochemical, sewage treatment, etc.

Verified Supplier

Verified Stockists (Contact directly for instant quote)

available 4 cars

ASME B16.36 orifice blind flange suppliers in UAE

Orifice flange specification


Orifice Flange Specification

Orifice Flange Standard Manufacturing Size Range Pressure Class
  • ASME B16.36 orifice flange : NPS ½” – 24”
  • 15 – 1200 NB
  • ½ inch to 48 inch

For any custom sizes contact listed orifice flange suppliers & manufacturers, price available through Live chat

  • 300#
  • 400#
  • 600#
  • 900#
  • 1500#
  • 2500#
Manufacturing Technique Thickness OR & ORFF Meaning
  • Forged orifice flange (Strongest choice)
  • Casting
  • Plate
  • CNC machined orifice flange from bar stock

These listed orifice flange suppliers are physically verified also they have 4+ years experience in supplying Orifice Plate Flange in South Africa, Saudi Arabia, USA, UAE, Qatar & Egypt

  • SCH 10 / 10S to Schedule 160
  • OR : Orifice flange
  • ORFF : Flat face orifice flange
Inspection Plan Packaging and Marking MTC and Quality Test
  • Outer & Inner Diameter of ORFF flange body
  • Diameter of threaded orifice flange bolt circle & bolt hole
  • Hub Diameter Of
  • Thickness of weld end
  • Straightness and alignment of RTJ orifice flange bolt hole
  • Sizes
  • Production code of orifice flange manufacturers
  • Material specification
  • Manufacturer’s name, brand logo
  • Heat code
  • Face type of orifice WN flange
  • Bore (if applicable)
  • Pressure Rating Designation
  • Dimensional standard (ASME B16.36)
  • NACE MR0175
  • ISO 15156
  • Visual inspection for stainless steel 904L orifice flange surfaces, welding & holes
  • Shell pressure test
  • Tensile test
  • MTC EN 10204 type 3.1
  • Impact test
  • PMI
  • Hardness test
Face Type Surface Finish Bolts Holes
  • Raised face (RF)
  • Ring type joint (RTJ)
  • Flat face (FF)
  • Spiral serrated
  • Serrated finish
  • Smooth Finish
  • Stock finish
  • 4 to 24

 

Buy stainless steel orifice flange at affordable prices from a trusted and genuine stockists in Dubai

Cast, plate & forged orifice flange material

Forged Plate Cast
Alloy Steel Orifice Flange
ASTM A182 Grade F5A & F5 ASTM A387 Grade 5 ASTM A217 Gr C5
ASTM A182 F1
ASTM A182 F9 ASTM A387 Grade 9 ASTM A217 Gr C12
ASTM A182 Grade F11 ASTM A387 Grade 11 ASTM A217 Gr WC6
ASTM A182 Grade F22 ASTM A387 Gr 22 ASME/ ASTM A217 Grade WC9
ASTM A182 Grade F91 ASTM A387 Gr 91 ASTM A217 Grade C12A
Stainless Steel Orifice Flange
ASTM A182 F304 orifice flange ASTM A240 304 ASTM A351 Grade CF8
ASTM A182 304L ASTM A240 304L ASTM A351 CF3
ASTM A182 310 ASTM A240 310 ASTM A351 CK20
ASTM A182 F316 orifice flange ASTM A240 316 ASTM A351 CF8M
ASTM A182 316L ASTM A240 316L ASTM A351 CF3M
ASTM A182 316LN ASTM A240 316LN ASTM A351 CF3MN
ASTM A182 317 ASTM A240 317 ASTM A351 CG8M
ASTM A182 317 ASTM A240 317L ASTM A351 CG3M
ASTM A182 Grade F347 ASTM A240 347 ASTM A351 CF8C
ASTM A182 F321 ASTM A240 321
ASTM A182 F904L ASTM A240 904L ASTM A351 CN2MCuN
ASTM A182 F6A ASTM A217 CA15
ASTM B462 UNS N08020 ASTM B 463 N08020 ASTM A351 CN7M
Nickel Alloy Orifice Flange
Inconel 800 – ASTM B564 ASTM B409 UNS N08800 A484 CU 5MCuC*
Inconel 825 – ASTM B564 ASTM B409 UNS N08825 A484 CU 5MCuC*
Inconel 600 – ASTM B564 ASTM B168 UNS N06600 A494 CY40*
Inconel 601 – ASTM B564 ASTM B168 UNS N06601
Inconel 625 orifice flange – ASTM B564 ASTM B168 UNS N06625 A494 CW6MC*
Monel 400 orifice flange – ASTM B564 ASTM B127 UNS N04400 A494 M35-1
Monel K500 – ASTM B564 ASTM B127 UNS N05500 A494 M30H
Hastelloy C-22 – ASTM B366 ASTM B575 UNS N06022 ASTM A494 CX2MW
Hastelloy C276 orifice flange – ASTM B366 ASTM B575 UNS N10276 ASTM A494 CW12MW
Super Duplex/ DSS Orifice Flange
ASTM A182 F51 ASTM A240 UNS S31803 ASTM A351 CD3MN
ASTM A182 F53 ASTM A240 UNS S32750 A890 GR.5A CE3MN*
ASTM A182 F55 ASTM A240 UNS S32760 A890 GR.6A CD3MWCuN
Al 6XN ASTM A240 UNS N08367 ASTM A351 CN3MN
ASTM A182 F44 ASTM A240 UNS S31254 ASTM A351 CK3MCuN
ASTM A182 F60 ASTM A240 UNS S32205
Titanium Orifice Flange
ASTM B381 Grade F2 ASTM B265 UNS R50400 ASTM B367 GR.C2
ASTM B381 Grade F3 ASTM B265 UNS R50550 ASTM B367 GR.C3
Copper Orifice Flange
ASTM B283 UNS C37700 ASTM B152 UNS C10100 ASTM B22/B22M
ASTM B124 UNS C63000
Copper Nickel Orifice Flange
Copper nickel 90/10 : ASTM B151 UNS C70600 ASTM B122 CU-Ni 90/10 ASTM B466 CuNi10Fe 1Mn
Copper nickel 70/30 : ASTM B151 UNS C71500 ASTM B122 CU-Ni 70/30 ASTM B466 CuNi30Mn1FE
EEMUA 234 : UNS 7060X
EEMUA 145
EN 1652/ 12420/124491
Ductile Iron Orifice Flange
ASTM B381 GR.F2 ASTM B367 GR.C2
Carbon Steel Orifice Flange
ASTM A105 orifice flange ASTM A515 Grade 60
ASTM A105N ASTM A216 WCB and WCC
ASTM A350 Grade LF2 ASTM A352 LCB and LCC
ASTM A350 Gr LF3 ASTM A352 LC3
ASTM A350 Gr LF6
LTCS ASTM A352 LCC
ASTM A694 F42 ASTM A572 Gr 42
ASTM A694 F46
ASTM A694 F50 ASTM A572 Gr 50
ASTM A694 F52
ASTM A694 F60 ASTM A572 Grade 60
ASTM A694 F65 ASTM A572 Grade 65
ASTM A694 F70 ASTM A572 Grade 70
S235JRG2, P250GH, 1.4541, 1.4571

Orifice Flange Material

Most selling Types of orifice flange ASME B16 36

  • Cast orifice flange
  • Forged orifice flange
  • CNC machined orifice flange
  • Orifice plate flange (made from plate)

 

Face types of orifice plate flange

Face types of orifice plate flange

 

Type Sealing way of orifice flange
FF Flat face orifice flange
Raised face orifice flange RF
RTJ orifice flange Ring Type Joint

 

Check dimensions

 

Raised face orifice flange height chart

Class Of RF orifice flange Height
Class 300 1/6″
Class 400 1/4″
Class 600 1/4″
Class 900 1/4″
Class 1500 1/4″
Class 2500 1/4″

 

Stainless steel orifice flange size chart

Number of Bolts Holes
Sizein Inch Sizein MM Class 300 Class 600 Class 900 Class 1500 Class 2500
1 25 4 4 4 4
1 1/2 40 4 4 4 4
2 50 8 8 8 8
2 1/2 65 8 8 8 8
3 80 8 8 8 8 8
3 1/2 90  –  –
4 100 8 8 8 8 8
6 150 12 12 12 12 8
8 200 12 12 12 12 12
10 250 16 16 16 12 12
12 300 16 20 20 16 12
14 350 20 20 20 16  –
16 400 20 20 20 16  –
18 450 24 20 20 16  –
20 500 24 24 20 16  –
24 600 24 24 20 16  –

 

Alloy steel orifice flange temperature range

Alloy Grade UNS Forged orifice flange Casting orifice flange DIN WNR Temperature range
Moly steel orifice flange C-1/2Mo K12822 ASTM A182 Gr F1 cl2 ASTM A217-WC1 15M03 1.5415
  • Up to 470ºC*
  • 875ºF
Alloy steel chrome moly orifice flange 1.1/4Cr-1/2Mo K11572 ASTM A182 Gr F11 cl2 ASTM A217 WC6 13CRM044 1.7335
  • Up to 593ºC
  • 1100ºF
2.1/4Cr-1Mo K21590 ASTM A182 Grade F22 cl3 ASTM A217 Gr WC9 10CRM0910 1.7380
  • Up to 593ºC
  • 1100ºF
5Cr-1/2Mo K41545 ASTM A182 Grade F5/F5a ASTM A217 Gr C5 12CRMO195 1.7362
  • High temp boiler/ refinery application
9Cr-1Mo K90941 A182 Gr F9 A217-C12 X 12 CrMo 9 1 1.7386
  • High temp erosive refinery application
9Cr-1Mo-V A182 Gr F91 A217-C12A X 10 CrMoVNb 9 1 1.4903
  • High pressure boilers
Alloy steel orifice flange AISI 4130 orifice flanges G41300 ASTM A182 ASTM A217/M 1.7218
  • 899 to 927°C
  • 1650 to 1700°F

 

Copper nickel orifice flange specification

Sizes Range OD & Drilling Dia Sizes
  • ½ – 36 inch
  • 16 – 914 MM
  • 16 – 610 MM
  • ½ – 24 inch
  • 711 -914 MM
  • 24 – 36 inch

Accoding to MSS SP-44

Pressure Class Composite flange Recommended Hardware
  • 16 bar
  • 20 bar
  • ASTM A105N
  • Welded UNS C70620 copper nickel disk
  • As per ASME B16.36
Coating Types 2 Of Copper Nickel RTJ Orifice Plate Applications
  • Hot dipped galvanising
  • Composite orifice flange
  • Solid orifice flange
  • Petroleum plants
  • Petrochemical
  • Marine applications
  • Seawater
  • Offshore
Grade UNS Number Standard
  • CU-Ni 90/10
  • CU-Ni 70/30
  • UNS C70620
  • UNS 7060X
  • CW352H
  • ASTM B4662
  • DIN 86019
  • ASTM B467
  • WL 2.1972
  • MIL-T-16420K
  • EN 1652
  • EN 12420
  • EEMUA 234/3-6
  • EEMUA 145
  • EEMUA 234
  • EN 124491

 

ORFF flange isometric symbol

Isometric Symbol Image Flange
ORFF flange isometric symbol orifice flange image Orifice flange

 

DIN standard of orifice weld neck flange

  • DIN 19214 orifice flange

 

Carbon steel orifice flange pressure class

ASME B16.36 orifice flange
  • CL 300
  • CL 600
  • CL 900
  • CL 1500
  • CL 2500

 

Orifice flange weight chart

Weight in KG
Sizein Inch Sizein MM Class 300 Class 600 Class 900 Class 1500 Class 2500
1 25 4.5 5.5 5.4 5.4 6.5
1 1/2 40 6.5 7.8 7.8 7.8 13
2 50 7 8.3 11.5 11.5 19
2 1/2 65 7.5 10.8 15.8 15.8 24
3 80 9.4 12.6 22 22 43
4 100 13.2 19 22 22 66
6 150 14.6 37 70 70 172
8 200 30 53 119 119 261
10 250 41 86 204 204 485
12 300 62 102 303 303 730
14 350 84 150 400 400  –
16 400 111 190 510 510  –
18 450 138 240 738 738  –
20 500 171 295 932 932  –
24 600 247 365 1511 1511  –

 

ASME B16.36 orifice flange dimensions

 

RTJ orifice flange dimensions

 

Jack screw for orifice flanges

NPS Jack screw for CL 300 orifice flanges
Size in inch Length in inch Hole Size in inch
1 5/8 2-3/4 11/16
1-1/4 5/8 2-3/4 11/16
1-1/2 5/8 2-3/4 11/16
2 5/8 2-3/4 11/16
2-1/2 5/8 2-3/4 13/16
3 3/4 2-3/4 13/16
4 3/4 2-3/4 13/16
5 3/4 2-3/4 7/8
6 3/4 2-3/4 7/8
8 3/4 3 7/8
10 1 3-1/2 1-1/8
12 1 3-1/2 1-1/8
14 1 3-1/2 1-1/8
16 1 3-1/2 1-1/8
18 1 3-3/4 1-1/8
20 1 3-3/4 1-1/8
24 1 4 1-1/8

 

Gasket for orifice flange

  • Tabbed orifice plate gaskets

 

Connect with SABIC approved ANSI B16 36 orifice flange suppliers to buy standard and bespoke sizes at competitive prices in the middle east

Typically, carbon or stainless steel is used for manufacturing various Orifice Flange Types.

A jack screw is fitted between the Weld Neck Orifice Flange Set. The main Purpose Of Jack Screw In Orifice Flanges is to separate the flanges at the time of inspection, repair, or replacement processes.

In order to determine what Orifice Flanges Size bore the client needs for their application, the rate of liquid flow inside the pipe should be divided by the liquid velocity. This is will give the total area of the Asme B16.5 Orifice Flanges in square feet.

Direct buying of alloy steel orifice weld neck flange without the middlemen will save you 30%-40% in Sharjah

Your Orifice Flanges Manufacturers In India can customize the flanges thickness according to your requirements.

Before ordering, compare response times and prices of duplex flat face orifice pipe flange & b16.36 orifice slip on flange in Bahrain

Yes, manufacturers keep different Type Of Orifice Flanges in standard sizes in stock for a quick shipment possibility.